NDLI: Morphology control of YMn<sub>2</sub>O<sub>5</sub> nanocrystals by hydrothermal synthesis and their magnetic properties

Content Provider	Royal Society of Chemistry (RSC)
Author	Wu, Songping Mei, Youxian
Copyright Year	2013
Abstract	Single-crystalline YMn2O5 was successfully synthesized through a tunable hydrothermal route. The pH value of the growth solution was a crucial factor for the control of the size and morphology of YMn2O5. A low pH value led to the formation of nanorods. Both the final size of the nanocrystals and their aspect ratio increased drastically with decreasing pH value. A relatively high temperature and low metallic salt concentrations favored the formation of one-dimensional nano-crystalline YMn2O5. Magnetic measurement indicated the crystalline YMn2O5 showed a weak ferromagnetic ordering, which was explained by uncompensated spins at the surface. The magnetic susceptibility indicates that the ferromagnetic transition temperature increases from 39 to 42 K with increasing grain size from 80 to 600 nm. With the decrease in the particle size, the coercivity increases while the exchange bias decreases.
Starting Page	11888
Ending Page	11894
Page Count	7
File Format	HTM / HTML PDF
ISSN	20462069
Volume Number	3
Issue Number	29
Journal	RSC Advances
DOI	10.1039/c3ra41671b
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Hydrothermal circulation Ferromagnetism Aspect ratio Magnetic susceptibility
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering

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Morphology control of YMn₂O₅ nanocrystals by hydrothermal synthesis and their magnetic properties